1.1 这些做法包括对水形成的沉积物进行采样，以进行化学、物理、生物或放射性分析。实践包括现场和实验室采样。它还定义了各种类型的矿床。包括以下实践: 小节 实施规程A-从油管中取样水形成的沉积物 蒸汽发生器和热交换器 8至10 规程B-从蒸汽中取样水形成的沉积物 涡轮机 11至14 1.2 此处给出的沉积物选择和去除的一般程序可适用于各种受水影响的表面- 形成的沉积物。然而，在将这些程序应用于其具体问题时，研究者必须借助其个人经验和判断。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 参见第节 7. , 9.8 , 9.8.4.6 和 9.14 具体危害声明。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 采样的目标是获得整体中具有代表性的一部分进行分析。最关键的因素是采样区域和样本数量的选择、采样方法以及在分析之前保持样本的完整性。 对水形成沉积物的分析应提供有关循环系统化学、部件腐蚀、侵蚀、故障机理、化学清洗的需要、化学清洗方法、局部循环腐蚀、锅炉携带物、涡轮机中的流型和辐射积聚速率的有价值信息。水形成沉积物的一些来源是循环腐蚀产物、补给水污染物和冷凝器冷却水污染物。

1.1 These practices cover the sampling of water-formed deposits for chemical, physical, biological, or radiological analysis. The practices cover both field and laboratory sampling. It also defines the various types of deposits. The following practices are included: Sections Practice A—Sampling Water-Formed Deposits From Tubing of Steam Generators and Heat Exchangers 8 to 10 Practice B—Sampling Water-Formed Deposits From Steam Turbines 11 to 14 1.2 The general procedures of selection and removal of deposits given here can be applied to a variety of surfaces that are subject to water-formed deposits. However, the investigator must resort to his individual experience and judgment in applying these procedures to his specific problem. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 7 , 9.8 , 9.8.4.6 , and 9.14 for specific hazards statements. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The goal of sampling is to obtain for analysis a portion of the whole that is representative. The most critical factors are the selection of sampling areas and number of samples, the method used for sampling, and the maintenance of the integrity of the sample prior to analysis. Analysis of water-formed deposits should give valuable information concerning cycle system chemistry, component corrosion, erosion, the failure mechanism, the need for chemical cleaning, the method of chemical cleaning, localized cycle corrosion, boiler carryover, flow patterns in a turbine, and the rate of radiation build-up. Some sources of water-formed deposits are cycle corrosion products, make-up water contaminants, and condenser cooling water contaminants.